Grieco Dehydration
Mechanism of the Grieco Dehydration
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Sample reactions
n-Bu3P, H2O, H2O2, o-NO2PhSeCN
THF
77% (2 steps)
n-Bu3P, H2O, H2O2, o-NO2PhSeCN
THF
RT
n-Bu3P, H2O, H2O2, o-NO2PhSeCN
THF
RT
mCPBA, NaHCO3
CH2Cl2
RT, 18 h, 84%
H2O2
THF
RT, 12 h, 90%
n-Bu3P, H2O, H2O2, o-NO2PhSeCN
Pyr, THF
0 °C to RT, ON, 90%
Me2S, mCPBA
CH2Cl2
-78 °C to RT, 15 h, 75% (2 steps)
n-Bu3P, H2O, H2O2, o-NO2PhSeCN
THF
84%
H2O2
H2O, THF
81% (2 steps)
H2O2
H2O, THF
0 to 50 °C, 75 min, 90%